Personal anecdote. My drinking days are long over, and now I limit my alcohol consumption to 1-2 drinks on Friday, right after work. The alcohol varies - a beer, a cider, 2 glasses of wine, or a glass of hot whiskey on particularly cold evenings. I also do a lot of fitness, so I'm monitoring my health pretty closely, in particular HRV at night, which is an amazing indicator of my sleep quality and overall health. I have a nearly perfect correlation between an evening drink and a drop of HRV into red zones, and the corresponding drop in sleep quality. The effect of the drink is so strong that I skip it altogether if I plan on having a long hard run the next day.